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                    <h1 class="documentTitle">UML/BPMN Metamodel</h1>
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               <div id="sidebar"><div><div class="sidePanel" id="infoArea"><h4 class="sideTitle">INFORMATIONS</h4><ul id="docProps"><li class="property">Status</li><li class="value">Release</li><li class="property">Category</li><li class="value">Modelio user guide</li><li class="property">Version</li><li class="value">2.3.00 (Modelio 5.4)</li><li class="property">Title</li><li class="value">UML/BPMN Metamodel</li><li class="property">Author</li><li class="value">Softeam</li><li class="property">Subject</li><li class="value"> </li></ul></div><div class="sidePanel" id="shortcutArea"><h4 class="sideTitle">SHORTCUTS</h4><ul id="shortcuts"><li><a href="index.html">Home</a></li><li><a href="sitemap.html">Site Map</a></li><li><a href="modelindex.html">Model Index</a></li><li><a href="tableoffigures.html">Table of Figures</a></li></ul></div></div></div>
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                    <div id="navbar"><ul><li id="prev"><a href="55.html" title="55.html">&lt; Previous</a></li><li id="home"><a href="index.html" title="Site map">Home</a></li><li id="next"><a href="57.html" title="57.html">Next &gt;</a></li></ul></div>
                    <div id="page"><div><a name="#Table 63"><!--anchor--></a><a name="#Figure 49"><!--anchor--></a><div align="LEFT" class="Titre4" startOnNewPage="true"><a name="_7f7654e4-18d6-11e0-9cf7-001ec947ccaf"><!--anchor--></a><a name="toc1.1.6.2"><!--anchor--></a><span class="None">BpmnEventBasedGateway</span></div><div align="LEFT" class="Normal" startOnNewPage="false"><span class="None">The Event-Based Gateway represents a branching point in the Process where the alternative paths that follow the Gateway are based on Events that occur, rather than the evaluation of Expressions using Process data (as with an Exclusive or Inclusive Gateway). A specific Event, usually the receipt of a Message, determines the path that will be taken. Basically, the decision is made by another Participant, based on data that is not visible to Process, thus, requiring the use of the Event-Based Gateway.
For example, if a company is waiting for a response from a customer they will perform one set of Activities if the customer responds ?Yes? and another set of Activities if the customer responds ?No.? The customer?s response determines which path is taken. The identity of the Message determines which path is taken. That is, the ?Yes? Message and the ?No? Message are different Messages?i.e., they are not the same Message with different values within a property of the Message. The receipt of the Message can be modeled with an Intermediate Event with a
Message Trigger or a Receive Task. In addition to Messages, other Triggers for Intermediate Events can be used, such as Timers.</span></div><center><img alt=": BpmnEventBasedGateway (architecture_autodiagram)" class="Image" height="280.0" src="img/b8e603f1-38c9-4275-bb8e-a625f3ea9490.png" usemap="#b8e603f1-38c9-4275-bb8e-a625f3ea9490" width="358.0"/></center><div align="CENTER" class="Lgende">Figure 49 : BpmnEventBasedGateway (architecture_autodiagram)</div><map name="b8e603f1-38c9-4275-bb8e-a625f3ea9490"><area alt="BpmnGateway" coords="129,0,229,80" href="58.html#_7f7654ce-18d6-11e0-9cf7-001ec947ccaf" name="b8e603f1-38c9-4275-bb8e-a625f3ea9490" shape="rect" title="BpmnGateway"/><area alt="BpmnEventBasedGateway" coords="0,180,358,280" href="56.html#_7f7654e4-18d6-11e0-9cf7-001ec947ccaf" name="b8e603f1-38c9-4275-bb8e-a625f3ea9490" shape="rect" title="BpmnEventBasedGateway"/></map><div id="tableContainer"><table class="ListeclaireAccent1" horizontal="true" tableStyle="ListeclaireAccent1"><caption/><tr class="odd"><th><div align="CENTER" class="Normal" startOnNewPage="false"><span class="None">Attribute</span></div></th><th><div align="CENTER" class="Normal" startOnNewPage="false"><span class="None">Description</span></div></th></tr><tr class="even"><td><div align="LEFT" class="Normal" startOnNewPage="false"><span class="None">boolean</span><span class="None"> </span><span class="None">Instanciate</span><span class="None"> [</span><span class="None">1</span><span class="None">..</span><span class="None">1</span><span class="None">]</span></div></td><td><div align="LEFT" class="Normal" startOnNewPage="false"><span class="None">Event Gateways can be used to instantiate a Process. By default the Gateway?s instantiate attribute is false, but if set to true, then the Process is instantiated when the first Event of the Gateway?s configuration is triggered.</span></div></td></tr><tr class="odd"><td><div align="LEFT" class="Normal" startOnNewPage="false"><span class="None">BpmnEventBasedGatewayType</span><span class="None"> </span><span class="None">EventGatewayType</span><span class="None"> [</span><span class="None">1</span><span class="None">..</span><span class="None">1</span><span class="None">]</span></div></td><td><div align="LEFT" class="Normal" startOnNewPage="false"><span class="None">The eventGatewayType determines the behavior of the Gateway when used to instantiate a Process (as described above).
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